- Designed to increase HP and lower emissions
- Uses 13 percent less fuel than other spark plugs
- For use with 4-cycle engines
- Replaces - Champion: N9YC, N11YC, N12YC, RN9YC, RN11YC, RN12YC, NGK: B5EB-11, B5ES, BP5ES, BP6ES, BPR7ES, BPR5ES, BPR6ES, BPR7ES, BR5ES
- 13/16 in. hex size
- Resistor